Method of treating warp-threads.



H. D. OOLMAN.

METHOD OF TREATING WARP THREADS.

APPLIOATION FILED DEG.19, 1906.

5 1 9 1 2 r m d 6 u n Du t a P 4 SHEET SSHEET 1.

[6/221 ver 9 f' y M H. D. GOLMAN.

Patented Mar. 2, 1915;

4 SHEETS-SHEET B.

H. D. GOLMAN.

METHOD OF TREATING WARP THREADS.

APPLIOATION FILED DEC. 19, 1906.

Patented Mar. 2, 1915.

4 SHEETS-SHEET 3.

H. 1). COLMAN. METHOD OF TREATING WARP THREADS. APPLICATION FILED DBO.19, 1906. I

Patented M2112} 1915.

4 SHEETS-SHEET 4.

nownnn L. comment, or Room-"can, ILLInoIs, assrenon, BY MESNE ASSIGNMENTS, no N mnsnnr, LUTHER L MILLER, AND HARRY A. snvnnson, communes DOING BUSINESS AT nocxronp, ILLInoIs, AS BARBER-COLMAN company.

METHOD OF TREATING W-TI-IREADS.

icence.

pammledt am 3 wt 3 Original application filed October 24., 1894, Serial No. 526,856. Continuation of applications filed September 6, 1902, Serial No. 122,381, and May 18, 1906, Serial No. 317,547. Divided and this application filed December 19, 1906. Serial No. 348,645.

To all whom it may concern Be it known that ll, HOWARD D. COLMAN, a citizen of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented a certam new and useful Method of Treating Warp:

Threads, of which the following is a specification.

This application is a division of my application, Serial No. 317 ,547, filed May 18, 1906, which application is a continuation of my application, Serial No. 122,381, filed by me September 6, 1902, which in turn 1s a continuation of my application filed October 24, 1894, Serial No. 526,856.

Warp threads lying side by side and not under tension tend to cling to each other to some extent. This fact, especially in view of their small diameter, renders it diflicult to separate threads singly and in success on from a mass of threads.

The art or process herein disclosed includes a method of separating individual threads from a mass of threads consisting in the following steps: first, arranging the threads in a sheet; second, stretching the sheet; third, deflecting the threads or sheet of threads; and fourth, releasing individual threads singly and in succession from their deflected position. When a thread is so released, its tension causes it to spring into or toward a straight line, the thread thereby separating itself from the remaimng threads.

The process herein disclosed also includes a method of preparing a warp for the performance of operations on individual threads of the warp, consisting in the four steps above outlined and the additional step of cutting the released threads singly and;

in succession. In this'way, loose ends quite separated from the body of warp threads are provided for drawing into a loom element, for tying to similar threads of another warp, and for other purposes. In the accompanying drawings, Flgure is a fragmental vertical sectional v1ew of a warp-drawing machine which may be em-- ployed in practising my invention. Fig. 2 IS a fragmental horizontal sectional view taken in the plane of dotted line 2-2 of Fig. 1. Fig. 3 is a fragmental detail view of a thread-deflecting member comprised in said machine. a warp frame also comprised in said machine. Fig. 5 is a fragmental view of one of the warp clamps of said frame. Fig. 6 is a fragmental perspective view of one of the bars used in inserting threads into said clamps. Figs. 7, 8 and 9 are views illustratmg successive positions of the threadselector and the stripper.

While any suitable means may be employed 1n practising the methods constitutlng'this invention, l[ have herein shown the Fig. 4 is a front elevation of' warp holding, selecting and severing means of a warp-drawing machine of the type fully illustrated and described in Patent No. 1,115,399, granted to me on October 27, 1914. Inasmuch as reference may be had to said patent for a full understanding of the construction and operation of all of the mechanisms of said machine, I will herein intermittent rotation of said screW-threaded shaft. The carriage B leans. against a short stationary ledge A" (Figs. 1 and 7) which is carried by the standard A. The warp carriage comprises a frame having a longitudinal bar 13 slightly above its center, two clamps l3 and B at'itS upper and its lower side, and the transverse frame-arms B; The warp threads pass upwardly across the face of the carriage between the two clamps B and B The threads are bowed outward slightly from a right line by the protruding -barB". The clamp B moved by hand levers B, fixed on the ends 1 of said shaft. By means of the hand levers 15 and their connections just described the clamp B may be moved away from the clamp B sufficiently to draw the warp threads on the carriage taut between said clamps and bowed intermediate their ends over the bar B Each of the clamps B and B comprises two clamping jaws B and B faced with rubber, and an intermediate bar B against which the rubber-faced clamping jaws are closed, by which intermediate bar the warp threads are pressed downward between the clamping jaws. The clamping jaw B is movable toward and away from the jaw B by means of the inclined teeth B formed upon its rear-face, which teeth correspond with the teeth B upon a slidable locking bar B, which locking bar is longitudinally movable by means of the toggle hand lever B pivoted at B (Fig. 5) to the framg of the clamp and connected by a link B to the slidable bar B .v

Assuming the clamping jaws B and B to be open (as in Fig. 5), the operation of clamping the warp is as follows: The warp is laid across the clamp, and the bar B? is pressed against the warp to carry the threads into the space between the jaws B and B The hand lever B is then swung (to the left in Fig. 5), thus moving the bar B to the left, and thereby forcing the jaw B against the threads and the bar B, whereby said bar B and the warp threads are secured'in the clamp. The toggle lever B throws over center to hold the clamp closed.

In a groove in the edge of the bar B over which the warp thr'eads extend is a thin bar B (Fig. 1) slightly roughened upon its outer edge (Fig. 3). The bar B is longitudinally movable in said groove by means of a lever B (Fig. 6)"pivotally connected with one end of said sliding piece and pivotally supported upon the bar 13*. The purpose of the slidable bar B is to slightly deflect the threads sidewise after they have been clamped and stretched in the warp carriage so that when each individual warp thread is lifted from the roughened edge of the bar B by the selector (to be later herein described) the tendency of said thread will be to straighten and move away from the body of warp threads, thus assistmg in the separation of the threads. The threads are selected from what may be termed the concave edge of the warp, that 1s to say, the side away from which the threads are bowed.

The thread-selecting mechanism (Figs. 7, 8 and 9) comprises an arm H. By means of the mechanism described in said Patent No. 1,115,399, the upper end of the arm H is given a motion somewhattriangular in outline, said arm moving forward toward the warp threads, sidewise away from the body of warp threads, and diagonally backward to the first position.

, A stem H (Fig. 7 is pivotally mounted in the upper end of the arm H. Fixed to said stem is a yoke H in which is pivoted a shaft H. To the shaft 11 is fixed a selector H A torsion spring H anchored at one end to a part fixed to the yoke H and attached at its other end to an arm ll fixed on the shaft H presses the selector H toward the warp.

H is a stop screw carried by the arm H and adapted to impinge upon the yoke H to limit the action of the spring H".

The angle between the selector and a horizontal plane may be varied by means of an eccentric H carried by an arm H fixed to the stem of the yoke H said eccentric acting upon the arm I The selector H is offset slightly toward the body of warp threads, and is provided on the side toward said threads with two or more thread-hooks or pockets H, the one near the forward end of the selector being smallest in size, and those rearward slightly larger, increasing from first to last. The

purpose of these thread-hooks H is to grasp a warp thread, and as it is necessary that only one warp thread be taken by the selector at each stroke thereof, the first hook is made of a size to receive a single small thread. If the first hook is too small to take the thread presented, the second. hook, being larger, probably will receive it; if not, the third. If the first hook was made large N enough to receive a large thread, it somepassing through the clamped ends of the thread, the selector yielding laterally against the tension of the spring H. Coninaente tinuing its forward movement, the selector carries the thread against a device I for guiding and releasably holding the thread, which device is fully described in my said patent. In the advancing movement of the selector, the thread is carried against a cutter disk, whereby the thread is severed and a free end thus provided for the drawingin operation.

The thread-severing means above referred to comprises, in the present embodiment, a

cutter disk J (Fig. 2) fixed near the upper end of a rotary shaft (not shown) which is mounted within a stationary sleeve J fixed in the frame of the machine. The disk is covered by a housing J 2 open at one point to permit the thread to be ushed in the forward movement of the se ector against the disk in order to sever said thread. A stripper H (Figs. 2 and 7) is fixed at the upper end of an oscillatory shaft H (Figs. 2 and 4) mounted in suitable bearings on the arm H. This shaft is oscillated and the stripper H moved forward and backward with relationto' the arm H and the selector H by means of a connection between an arm H fixed to the lower end of said shaft and an arm H secured to a part of the supporting frame (see Fig. 2).' The arms H and H have ball-and-socket connections with opposite ends of a connecting rod H and thus when the arm His moved forward the stripper also moves forward with relation to said arm. In the-continuing movement of the arm H, the stripper H is caused to swing forward and-take the thread from the selector, the thread-then extending from the thread-holder I through a notch P (Fig. 9), through th hook of the stripper II to the upper wa p clamp B The purpose of the strippe is to bring the J thread to 'a definite and uniform position lected thread to pass it.

with reference to the needle, notwithstanding the fact that the thread may have been taken by any one. of the selector hooks. The stripper also catches any selected thread that may escape from the selector.

A detaining finger I is pivotally mounted near the forward side of the device I 1 and isyieldingly held forward against a stop I by: means of a coiled spring I. The finger I yields to allow the se- The purpose of this finger is to hold back a second warp thread that may adhere to the one carried forward by the selector. To prevent such thread from sprin%ng to the second war I so that the next hoo of the seleft (Fig. 7

llector" would catch it, I provide a stop shouler w.

The various operations may be sumthe'warp in the form of a sheet is first secured in the clamps B and B; the sheet is stretched by means of the hand lever B"; the sheet is deflected by means of the hand lever B; the threads are released from the defleeting bar B, singly and successively, beginning at the concave edge of the warp, by means of the selector H the tension of the thread causing it to spring into or toward a straightline, and the thread thereby separating itself from the remaining threads; and the separated thread is moved by the selector into contact with the cutter disk J and severed, whereby a separated, loose thread is provided for the subsequent Warp-drawing, warp-uniting or warp-leasing operation.

I; claim as my invention:

P1. In the process of handling warps pre-v paratory to weaving, the step of separating individual threads from the Warp consisting in stretching a section of the warp, deflecting the threads of said section, relaesing individ ual threads in succession from their deflected position, and moving each released thread into position for the performance'of another operation thereon.

2. In the process of handling warps preparatory to weaving, the step of separating individual threads from the warp consisting marized as follows: A transverse section of in stretching a section of the warp, deflecting I the threads of said section, releasing individual threads in succession from their deflected position and moving each releasedthe series to place the elements under tension, releasing individual elements in succession from their deflected position, whereby when the elements are released they spring away from the deflected series, and moving each released element into position for the performance of another operation thereon.

Signed at Rockford, in the county of "Wmnebago, State of Illinois, this 17th day of December, 1906.

' HOWARD D. COLMAN. Witnesses:

T. F. Looms, E. D. PAnKEn. 

